US20100319420A1 - Wafer cylinder having blockable wafer tumblers - Google Patents
Wafer cylinder having blockable wafer tumblers Download PDFInfo
- Publication number
- US20100319420A1 US20100319420A1 US12/817,667 US81766710A US2010319420A1 US 20100319420 A1 US20100319420 A1 US 20100319420A1 US 81766710 A US81766710 A US 81766710A US 2010319420 A1 US2010319420 A1 US 2010319420A1
- Authority
- US
- United States
- Prior art keywords
- cylinder
- disk
- blocking element
- toothed zone
- cylinder lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000000903 blocking effect Effects 0.000 claims description 72
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B29/00—Cylinder locks and other locks with plate tumblers which are set by pushing the key in
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B29/00—Cylinder locks and other locks with plate tumblers which are set by pushing the key in
- E05B29/0066—Side bar locking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/7486—Single key
- Y10T70/7508—Tumbler type
- Y10T70/7559—Cylinder type
- Y10T70/7588—Rotary plug
- Y10T70/7593—Sliding tumblers
- Y10T70/7599—Transverse of plug
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/7486—Single key
- Y10T70/7508—Tumbler type
- Y10T70/7559—Cylinder type
- Y10T70/7588—Rotary plug
- Y10T70/7593—Sliding tumblers
- Y10T70/7599—Transverse of plug
- Y10T70/7616—Including sidebar
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/7486—Single key
- Y10T70/7508—Tumbler type
- Y10T70/7559—Cylinder type
- Y10T70/7638—Cylinder and plug assembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/7915—Tampering prevention or attack defeating
- Y10T70/7932—Anti-pick
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/7915—Tampering prevention or attack defeating
- Y10T70/7932—Anti-pick
- Y10T70/7944—Guard tumbler
Definitions
- the invention relates to a cylinder lock of the type of a disk tumbler cylinder (also denoted as a wafer cylinder) having a cylinder housing and a cylinder core rotatable therein, with a plurality of disk tumblers (also denoted as wafer tumblers) being provided in the cylinder core which have at least one respective engagement section.
- the disk tumblers are movable between an unlatched position and a latched position and are biased along a respective bias direction into the latched position. In the latched position, the respective engagement section engages into an associated cut-out in the cylinder housing to block the cylinder core against a rotary movement relative to the cylinder housing.
- the cylinder core is rotatable in a rotary opening direction relative to the cylinder housing when the disk tumblers are in the unlatched position.
- a problem with such a cylinder lock is the so-called locking picking.
- This is understood as the attempt to open a cylinder lock without force without a matching key.
- special opening tools are used with which the disk tumblers are moved out of their respective latched position against the bias up to the ring gap between the cylinder housing and the cylinder core. If in so doing a suitable torque is simultaneously exerted onto the cylinder core in the rotary opening direction, for example by means of a so-called tensioning lever, it can thus be achieved in some cases while utilizing the usually present rotary play that the disk tumblers catch at the edge of the associated cut-out of the cylinder housing so that the cylinder core can be rotated without the desired blocking effect.
- a “setting” of the disk tumblers which is carried out sequentially for the individual disk tumblers.
- a cylinder lock of the kind named above is known from DE 10 2007 056 739 A1.
- This cylinder lock an increased security against locking picking is achieved in that at least two of the disk tumblers have different rotary play between the engagement section of the respective disk tumbler and the lateral boundary of the associated cut-out in the cylinder housing located in the rotary opening direction. Whereas such a cylinder lock has proven itself in practice, there is a need to increase the security against locking picking even further.
- a cylinder lock having the features of claim 1 , and in particular in that at least one of the disk tumblers has a toothed zone which can be brought into engagement with a counter-toothed zone of the cylinder lock such that the disk tumbler is blocked against a movement of the respective direction of bias when the disk tumbler is located in the latched position and a torque is exerted onto the cylinder core in the rotary opening position.
- a respective toothed zone of one or more of the disk tumblers cooperates with an associated counter-toothed zone of the cylinder lock through a mutual toothed engagement such that the respective disk tumbler is blocked in the latched position when a torque is exerted onto the cylinder core in the rotary opening direction.
- a shape matching is caused between the named toothed zone and the associated counter-toothed zone.
- the respective disk tumbler can thus not be brought into the unlatched position at all from the start within the framework of a typical picking attempt so that there is also no risk that the disk tumbler (and in particular all disk tumblers sequentially) is held in the unlatched position.
- the named toothed zone of the at least one disk tumbler and the associated counter-toothed zone of the cylinder lock have at least one recess or at least one raised portion which can be introduced into the recess.
- the explained toothed engagement can hereby already be realized to be able to block the respective disk tumbler in the latched position since anyway no particularly high forces can be transmitted by means of the picking tools usually used.
- the mutual toothed engagement is furthermore particularly effective when the toothed zone of the at least one disk tumbler and the associated counter-toothed zone of the cylinder lock cooperate in a direction which extends substantially perpendicular to the direction of bias.
- a shape matched connection can hereby be realized which particularly reliably prevents an unauthorized displacement of the disk tumbler into the unlatched position.
- the toothed zone of the at least one disk tumbler and the counter-toothed zone of the cylinder lock cooperate within the cylinder core, i.e. radially within the ring gap between the cylinder housing and the cylinder core with respect to the axis of rotation.
- a simpler and more exact formation of the counter-toothed zone is hereby possible since this does not, for example, have to be worked into the named cut-out of the cylinder housing (for the engagement section of the disk tumbler).
- the named toothed zone of the at least one disk tumbler and the associated counter-toothed zone of the cylinder lock cooperate with one another such that the explained mutual engagement can be cancelled in that a torque is exerted onto the cylinder core against the rotary opening direction.
- the at least one disk tumbler has a further engagement section in addition to the named engagement section, said further engagement section being disposed opposite the named engagement section with respect to the respective direction of bias.
- the disk tumbler in this case blocks the cylinder core against a rotary movement relative to the cylinder housing even when the disk tumbler is moved opposite to the respective direction of bias in the direction of a further latched position in which the further engagement section engages into an associated further cut-out in the cylinder housing.
- the disk tumbler in this embodiment also has yet a further toothed zone which can be brought into engagement with the named counter-toothed zone of the cylinder lock such that the disk tumbler is blocked against a movement along the respective direction of bias when the disk tumbler is in the further latched position and a torque is exerted onto the cylinder core in the rotary opening direction.
- the further engagement section of the disk tumbler likewise serves to block the cylinder core against a rotary movement relative to the cylinder housing if it should prove possible to move the disk tumbler opposite to the direction of bias despite the explained toothed engagement (between the named toothed zone and the counter-toothed zone) and if the disk tumbler in so doing is moved beyond the unlatched position into the further latched position.
- the toothed engagement between the named further toothed zone and the associated counter-toothed zone results in a rotation of the cylinder core not being possible.
- This embodiment therefore contributes to a further increase of the security against manipulation.
- the named counter-toothed zone is provided at least one blocking element of the cylinder lock which is formed separately from the cylinder core and from the cylinder housing.
- the manufacture of the cylinder lock is hereby simplified since the counter-toothed zone can, for example, be made as an external toothed arrangement of the named blocking element and does not, for instance, have to be worked into a groove of the cylinder housing or the like.
- a separate blocking element On the presence of such a separate blocking element, it is furthermore preferred if it is movably supported at the cylinder core.
- the movability of a separate blocking element can be used to make the bringing into engagement of the named toothed zone and associated counter-toothed zone even more reliable and to provide additional protection against rotation for the cylinder core.
- the named blocking element can in particular be pivotably supported at the named cylinder core, with the pivot axis preferably extending parallel to the axis of rotation of the cylinder core.
- the counter-toothed zone of the named blocking element can also be reliably brought out of engagement with the associated toothed zone of the respective disk tumbler again, it is furthermore preferred if the named blocking element is biased in the direction of the cylinder housing, that is in a direction away from the respective toothed zone or from the respective disk tumbler.
- the named blocking element is movable, it is furthermore preferred if the blocking element is supported at the cylinder housing while the toothed zone of the respective disk tumbler cooperates in the explained manner with the counter-toothed zone to block the disk tumbler in the latched position. It is ensured by the support of the blocking element at the cylinder housing that, in the case of an application of a torque onto the cylinder core in the rotary opening direction, a mutual engagement is reliably established between the named toothed zone and the associated counter-toothed zone and that the blocking element in this respect does not, for instance, follow the rotary movement of the cylinder core. In other words, it is ensured that the blocking element of the associated disk tumbler does not “run away”.
- the named blocking element while it is supported at the cylinder housing, blocks the cylinder core against a rotary movement relative to the cylinder housing.
- the named blocking element can (in addition to the cooperation of the engagement section of the respective disk tumbler with the associated cut-out in the cylinder housing) form a security against rotation for the cylinder core.
- the disk tumblers can thus have comparatively small dimensions.
- Particularly compact constructional shapes of the cylinder lock hereby result with a correspondingly small thickness of the disk tumblers in particular in the axial direction (again with respect to the axis of rotation of the cylinder core).
- the named disk tumbler has, adjacent to the named toothed zone, a release cut-out into which the respective blocking element can engage when the disk tumbler is in the latched position due to the proper use of the associated key, with the blocking of the cylinder core by the blocking element explained above being cancelled when the blocking element engages into the release cut-out of the disk tumbler.
- the named release cut-out thus enables a movement of the blocking element to cancel the explained security against rotation between the cylinder core and the cylinder housing, with the corresponding movement of the blocking element only being possible, however, when the respective disk tumbler is in the unlatched position.
- a respective blocking element is associated with a plurality of disk tumblers, in particular with all the disk tumblers of the cylinder lock.
- a common blocking element can in particular be associated with the plurality of disk tumblers.
- a plurality of separate blocking elements is thus not necessary, with an advantageously simple structure of the cylinder lock resulting from this.
- FIG. 1 shows a disk tumbler lock in an exploded view
- FIGS. 2 a and 2 b show the disk tumbler lock in the latched state in a cross-sectional view or in a perspective view (without cylinder housing);
- FIGS. 3 a and 3 b show the disk tumbler in the unlatched state in a cross-sectional view (with the cylinder core being rotated by 90°) or in a perspective view (without cylinder housing).
- the shown disk tumbler cylinder lock will first be described mainly with respect to FIG. 1 .
- the lock has a cylinder housing 11 and a cylinder core 13 rotatable therein.
- the cylinder housing 11 has a cut-out 15 and a further cut-out 17 ( FIGS. 2 a and 3 a ) which extend in groove shape at the inner jacket surface of the cylinder housing 11 parallel to the axis of rotation A of the cylinder core 13 , with the two cut-outs 15 , 17 being disposed diametrically opposite one another.
- the cylinder housing 11 furthermore has a blocking cut-out 19 at its inner jacket surface which likewise extends parallel to the axis of rotation A.
- the cut-outs 15 , 17 and the blocking cut-out 19 form deviations from an essentially circular cross-section of the inner jacket surface of the cylinder housing 11 .
- a plurality of tumbler disks 21 are held movably in translatory manner in the cylinder core 13 .
- Each disk tumbler 21 has a core section 23 , an engagement section 25 and a further engagement section 27 disposed diametrically opposite thereto with respect to the axis of rotation A.
- the respective core section 23 surrounds a key opening 29 of the respective disk tumbler, with the key openings 29 of the disk tumblers 21 and an introduction opening 31 of the cylinder core 13 together forming a keyway 33 .
- a toothed zone 35 and (adjacent hereto in the direction of bias X) a further toothed zone 37 are formed at each disk tumbler 21 .
- a release cut-out 39 is provided between the toothed zone 35 and the further toothed zone 37 of each disk tumbler 21 .
- the release cut-out 39 is thus likewise arranged adjacent to the respective toothed zone 35 in the direction of bias X.
- a biasing spring 41 is associated with each disk tumbler 21 by means of which the disk tumbler 21 is biased along a direction of bias X into a latched position to be explained in the following.
- the shown disk tumbler cylinder lock furthermore includes a tumbler 43 as a security against rotation which is likewise held movably in the cylinder core 13 and with which a biasing spring 45 is associated.
- the disk tumbler cylinder lock furthermore has a blocking element 47 which is pivotably journaled at the cylinder core 13 by means of a link pin 49 which engages into a linking opening 51 of the cylinder core 13 .
- the link pin 49 passes through a torsion spring 53 which cooperates with the blocking element 47 and the cylinder core 13 to bias the blocking element 47 into a direction of bias Y away from the respective toothed zone 35 of the disk tumblers 21 , as will be explained in the following ( FIGS. 2 a and 3 a ).
- This bias is also supported by a compression spring 55 which engages between a support section 57 of the blocking element 47 and a spring mount 59 of the cylinder core 13 .
- the blocking element 47 furthermore has a web section 61 which extends parallel to the axis of rotation A of the cylinder core 13 .
- the web section 61 has a counter-toothed zone 63 at the side facing the disk tumblers 21 .
- the blocking element 47 furthermore has at its outer side remote from the disk tumblers 21 a support section 65 which likewise extends parallel to the axis of rotation A.
- the shown disk tumbler lock furthermore includes a drill protection plate 67 and an associated key 69 .
- FIG. 2 a shows the lock before the complete introduction of the associated key 69 . Due to the bias by means of the respective biasing spring 41 , the disk tumblers 21 are in a latched position in which the respective engagement section 25 engages into the associated cut-out 15 of the cylinder housing 11 .
- the cylinder core 13 is hereby blocked against a rotary movement relative to the cylinder housing 11 .
- the disk tumblers 21 are brought opposite to the direction of bias X into a respective unlatched position in which the engagement sections 25 are withdrawn from the cut-out 15 of the cylinder housing 11 at the level of the ring gap which is formed between the cylinder housing 11 and the cylinder core 13 .
- the cylinder core 13 can now be rotated in the direction of opening O by means of the key 69 .
- FIG. 3 a shows the result of such a rotation through 90°.
- the rotational security tumbler 43 ( FIG. 1 ) prevents a rotary actuation of the cylinder core 13 as long as the associated key 69 is not completely introduced into the keyway 33 .
- the directions of bias X can also be directed opposite to one another, in particular on the use of a reversible key 69 .
- the latched position of one of the disk tumblers 21 is therefore disposed diametrically opposite the latched position of another of the disk tumblers 21 .
- a special feature of the shown disk tumbler cylinder lock is the respective toothed zone 35 of the disk tumblers 21 which cooperates with the counter-toothed zone 63 at the web section 61 of the pivotable blocking element 47 .
- the respective toothed zone 35 of the disk tumblers 21 enters into shape matched engagement with the named counter-toothed zone 63 .
- the blocking element 47 biased in the direction of bias Y is namely supported at the inner jacket surface of the cylinder housing 11 , with the support section 65 of the blocking element 47 engaging into the blocking cut-out 19 of the cylinder housing 11 so that the blocking element 47 cannot escape backward despite the named torque loading onto the cylinder core 13 .
- Due to the shape matched engagement thus brought about between the toothed zone 35 and the counter-toothed zone 63 the respective disk tumbler 21 is blocked against a movement opposite to the direction of bias X, that is from the latched position shown in FIG. 2 a in the direction of the unlatched position.
- the lock is hereby effectively protected against unauthorized opening by successive “setting” of the disk tumblers 21 while applying a torque, with a displacement of the respective disk tumblers 21 from the latched position into the unlatched position not being permitted at all.
- the active direction of the named shape matched engagement between the respective toothed zone 35 and the counter-toothed zone 63 in this respect extends substantially perpendicular to the direction of bias X of the disk tumblers 21 , i.e. substantially parallel to the direction of bias Y of the blocking element 47 . Due to the bias of the blocking element 47 in the direction Y, an unintentional mutual engagement of the toothed zone 35 of the disk tumbler 21 and of the counter-toothed zone 63 of the blocking element 47 is prevented.
- the blocking element 47 blocks the cylinder core 13 (in addition to the engagement sections 25 of the disk tumblers 21 ) against a rotary movement relative to the cylinder housing 11 as long as the disk tumblers 21 are in the latched position in accordance with FIG. 2 a .
- the web section 61 of the blocking element 47 can pivot into the respective release cut-out 39 of the disk tumblers 21 by rotating the cylinder core 13 in the rotary opening direction O so that the explained additional blocking effect of the blocking element 47 is cancelled.
- FIG. 3 b shows that the release cut-outs 39 of the disk tumblers 21 in this state form a throughgoing groove for the reception of the web section 61 of the blocking element 47 .
- the further cut-out 17 of the cylinder housing 11 enables a cooperation with the respective further engagement section 27 of the disk tumblers 21 to block the cylinder core 13 against a rotary movement relative to the cylinder housing 11 if the respective disk tumbler 21 is moved out of the latched position in accordance with FIG. 2 a beyond the explained latched position into a further latched position.
- a shape matched engagement is effected between the further toothed zone 37 of the respective disk tumbler 21 and the counter-toothed zone 63 of the blocking element 47 to prevent a movement back of the disk tumbler 21 as long as a torque is exerted onto the cylinder core 13 in the rotary opening direction O.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lock And Its Accessories (AREA)
- Braking Arrangements (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
- This application claims priority of German Patent Application 10 2009 030 032.5 filed Jun. 23, 2009.
- The invention relates to a cylinder lock of the type of a disk tumbler cylinder (also denoted as a wafer cylinder) having a cylinder housing and a cylinder core rotatable therein, with a plurality of disk tumblers (also denoted as wafer tumblers) being provided in the cylinder core which have at least one respective engagement section. The disk tumblers are movable between an unlatched position and a latched position and are biased along a respective bias direction into the latched position. In the latched position, the respective engagement section engages into an associated cut-out in the cylinder housing to block the cylinder core against a rotary movement relative to the cylinder housing. The cylinder core is rotatable in a rotary opening direction relative to the cylinder housing when the disk tumblers are in the unlatched position.
- A problem with such a cylinder lock is the so-called locking picking. This is understood as the attempt to open a cylinder lock without force without a matching key. For this purpose, special opening tools are used with which the disk tumblers are moved out of their respective latched position against the bias up to the ring gap between the cylinder housing and the cylinder core. If in so doing a suitable torque is simultaneously exerted onto the cylinder core in the rotary opening direction, for example by means of a so-called tensioning lever, it can thus be achieved in some cases while utilizing the usually present rotary play that the disk tumblers catch at the edge of the associated cut-out of the cylinder housing so that the cylinder core can be rotated without the desired blocking effect. In this respect, one speaks of a “setting” of the disk tumblers which is carried out sequentially for the individual disk tumblers.
- A cylinder lock of the kind named above is known from DE 10 2007 056 739 A1. With this cylinder lock, an increased security against locking picking is achieved in that at least two of the disk tumblers have different rotary play between the engagement section of the respective disk tumbler and the lateral boundary of the associated cut-out in the cylinder housing located in the rotary opening direction. Whereas such a cylinder lock has proven itself in practice, there is a need to increase the security against locking picking even further.
- It is an object of the invention to provide a cylinder lock of the type of a disk tumbler cylinder which has improved security against manipulation, in particular with respect to the explained locking picking.
- This object is satisfied by a cylinder lock having the features of claim 1, and in particular in that at least one of the disk tumblers has a toothed zone which can be brought into engagement with a counter-toothed zone of the cylinder lock such that the disk tumbler is blocked against a movement of the respective direction of bias when the disk tumbler is located in the latched position and a torque is exerted onto the cylinder core in the rotary opening position.
- With the cylinder lock in accordance with the invention, a respective toothed zone of one or more of the disk tumblers cooperates with an associated counter-toothed zone of the cylinder lock through a mutual toothed engagement such that the respective disk tumbler is blocked in the latched position when a torque is exerted onto the cylinder core in the rotary opening direction. In this respect, a shape matching is caused between the named toothed zone and the associated counter-toothed zone. The “setting” of the respective disk tumbler explained above is thus prevented, namely in that it is not permitted at all that the respective disk tumbler is moved out of the latched position into the unlatched position in an unauthorized manner. In this respect, the circumstance is utilized that, on a typical manipulation attempt, a torque is simultaneously exerted onto the cylinder core in the rotary opening direction, which is not the case with an intended actuation of the cylinder lock by means of the associated key. In other words, the named toothed zone of the respective disk tumbler enters into toothed engagement with the associated counter-toothed zone as soon as, starting from the latched position of the disk tumbler, the cylinder core is rotated in the rotary opening direction (which is possible to a specific degree due to the rotary play which is present). The respective disk tumbler can thus not be brought into the unlatched position at all from the start within the framework of a typical picking attempt so that there is also no risk that the disk tumbler (and in particular all disk tumblers sequentially) is held in the unlatched position.
- Advantageous embodiments of the invention are named in the following and in the dependent claims.
- In accordance with a particularly simple embodiment, the named toothed zone of the at least one disk tumbler and the associated counter-toothed zone of the cylinder lock have at least one recess or at least one raised portion which can be introduced into the recess. The explained toothed engagement can hereby already be realized to be able to block the respective disk tumbler in the latched position since anyway no particularly high forces can be transmitted by means of the picking tools usually used.
- The mutual toothed engagement is furthermore particularly effective when the toothed zone of the at least one disk tumbler and the associated counter-toothed zone of the cylinder lock cooperate in a direction which extends substantially perpendicular to the direction of bias. In other words, a shape matched connection can hereby be realized which particularly reliably prevents an unauthorized displacement of the disk tumbler into the unlatched position.
- In accordance with a further embodiment, the toothed zone of the at least one disk tumbler and the counter-toothed zone of the cylinder lock cooperate within the cylinder core, i.e. radially within the ring gap between the cylinder housing and the cylinder core with respect to the axis of rotation. A simpler and more exact formation of the counter-toothed zone is hereby possible since this does not, for example, have to be worked into the named cut-out of the cylinder housing (for the engagement section of the disk tumbler).
- To ensure a proper function of the cylinder lock on an authorized actuation by means of the associated key despite the usual tolerances, it is preferred if the named toothed zone of the at least one disk tumbler and the associated counter-toothed zone of the cylinder lock cooperate with one another such that the explained mutual engagement can be cancelled in that a torque is exerted onto the cylinder core against the rotary opening direction. To be able to cancel an unintended blocking of the respective disk tumbler in the latched position due to the explained toothed engagement, it is therefore only necessary to rotate the cylinder core briefly against the rotary opening direction by means of the associated key.
- In accordance with a further advantageous embodiment, the at least one disk tumbler has a further engagement section in addition to the named engagement section, said further engagement section being disposed opposite the named engagement section with respect to the respective direction of bias. The disk tumbler in this case blocks the cylinder core against a rotary movement relative to the cylinder housing even when the disk tumbler is moved opposite to the respective direction of bias in the direction of a further latched position in which the further engagement section engages into an associated further cut-out in the cylinder housing. The disk tumbler in this embodiment also has yet a further toothed zone which can be brought into engagement with the named counter-toothed zone of the cylinder lock such that the disk tumbler is blocked against a movement along the respective direction of bias when the disk tumbler is in the further latched position and a torque is exerted onto the cylinder core in the rotary opening direction. In other words, the further engagement section of the disk tumbler likewise serves to block the cylinder core against a rotary movement relative to the cylinder housing if it should prove possible to move the disk tumbler opposite to the direction of bias despite the explained toothed engagement (between the named toothed zone and the counter-toothed zone) and if the disk tumbler in so doing is moved beyond the unlatched position into the further latched position. In such a case, the toothed engagement between the named further toothed zone and the associated counter-toothed zone results in a rotation of the cylinder core not being possible. This embodiment therefore contributes to a further increase of the security against manipulation.
- In accordance with a preferred embodiment, the named counter-toothed zone is provided at least one blocking element of the cylinder lock which is formed separately from the cylinder core and from the cylinder housing. The manufacture of the cylinder lock is hereby simplified since the counter-toothed zone can, for example, be made as an external toothed arrangement of the named blocking element and does not, for instance, have to be worked into a groove of the cylinder housing or the like.
- On the presence of such a separate blocking element, it is furthermore preferred if it is movably supported at the cylinder core. The movability of a separate blocking element can be used to make the bringing into engagement of the named toothed zone and associated counter-toothed zone even more reliable and to provide additional protection against rotation for the cylinder core.
- The named blocking element can in particular be pivotably supported at the named cylinder core, with the pivot axis preferably extending parallel to the axis of rotation of the cylinder core.
- So that the counter-toothed zone of the named blocking element can also be reliably brought out of engagement with the associated toothed zone of the respective disk tumbler again, it is furthermore preferred if the named blocking element is biased in the direction of the cylinder housing, that is in a direction away from the respective toothed zone or from the respective disk tumbler.
- Provided the named blocking element is movable, it is furthermore preferred if the blocking element is supported at the cylinder housing while the toothed zone of the respective disk tumbler cooperates in the explained manner with the counter-toothed zone to block the disk tumbler in the latched position. It is ensured by the support of the blocking element at the cylinder housing that, in the case of an application of a torque onto the cylinder core in the rotary opening direction, a mutual engagement is reliably established between the named toothed zone and the associated counter-toothed zone and that the blocking element in this respect does not, for instance, follow the rotary movement of the cylinder core. In other words, it is ensured that the blocking element of the associated disk tumbler does not “run away”.
- It is of particular advantage if the named blocking element, while it is supported at the cylinder housing, blocks the cylinder core against a rotary movement relative to the cylinder housing. In other words, the named blocking element can (in addition to the cooperation of the engagement section of the respective disk tumbler with the associated cut-out in the cylinder housing) form a security against rotation for the cylinder core. The disk tumblers can thus have comparatively small dimensions. Particularly compact constructional shapes of the cylinder lock hereby result with a correspondingly small thickness of the disk tumblers in particular in the axial direction (again with respect to the axis of rotation of the cylinder core).
- In accordance with a further advantageous embodiment, the named disk tumbler has, adjacent to the named toothed zone, a release cut-out into which the respective blocking element can engage when the disk tumbler is in the latched position due to the proper use of the associated key, with the blocking of the cylinder core by the blocking element explained above being cancelled when the blocking element engages into the release cut-out of the disk tumbler. The named release cut-out thus enables a movement of the blocking element to cancel the explained security against rotation between the cylinder core and the cylinder housing, with the corresponding movement of the blocking element only being possible, however, when the respective disk tumbler is in the unlatched position.
- In accordance with a further embodiment, a respective blocking element is associated with a plurality of disk tumblers, in particular with all the disk tumblers of the cylinder lock. A particularly high security against manipulation hereby results.
- A common blocking element can in particular be associated with the plurality of disk tumblers. A plurality of separate blocking elements is thus not necessary, with an advantageously simple structure of the cylinder lock resulting from this.
- The invention will be described in the following only by way of example with reference to the drawings.
-
FIG. 1 shows a disk tumbler lock in an exploded view; -
FIGS. 2 a and 2 b show the disk tumbler lock in the latched state in a cross-sectional view or in a perspective view (without cylinder housing); -
FIGS. 3 a and 3 b show the disk tumbler in the unlatched state in a cross-sectional view (with the cylinder core being rotated by 90°) or in a perspective view (without cylinder housing). - The shown disk tumbler cylinder lock will first be described mainly with respect to
FIG. 1 . The lock has acylinder housing 11 and acylinder core 13 rotatable therein. Thecylinder housing 11 has a cut-out 15 and a further cut-out 17 (FIGS. 2 a and 3 a) which extend in groove shape at the inner jacket surface of thecylinder housing 11 parallel to the axis of rotation A of thecylinder core 13, with the two cut-outs cylinder housing 11 furthermore has a blocking cut-out 19 at its inner jacket surface which likewise extends parallel to the axis of rotation A. The cut-outs cylinder housing 11. - A plurality of
tumbler disks 21 are held movably in translatory manner in thecylinder core 13. Eachdisk tumbler 21 has acore section 23, anengagement section 25 and afurther engagement section 27 disposed diametrically opposite thereto with respect to the axis of rotation A. Therespective core section 23 surrounds akey opening 29 of the respective disk tumbler, with thekey openings 29 of thedisk tumblers 21 and an introduction opening 31 of thecylinder core 13 together forming akeyway 33. Atoothed zone 35 and (adjacent hereto in the direction of bias X) afurther toothed zone 37 are formed at eachdisk tumbler 21. A release cut-out 39 is provided between thetoothed zone 35 and thefurther toothed zone 37 of eachdisk tumbler 21. The release cut-out 39 is thus likewise arranged adjacent to therespective toothed zone 35 in the direction of bias X. Furthermore, a biasingspring 41 is associated with eachdisk tumbler 21 by means of which thedisk tumbler 21 is biased along a direction of bias X into a latched position to be explained in the following. - The shown disk tumbler cylinder lock furthermore includes a
tumbler 43 as a security against rotation which is likewise held movably in thecylinder core 13 and with which abiasing spring 45 is associated. - The disk tumbler cylinder lock furthermore has a blocking
element 47 which is pivotably journaled at thecylinder core 13 by means of alink pin 49 which engages into a linkingopening 51 of thecylinder core 13. Thelink pin 49 passes through atorsion spring 53 which cooperates with the blockingelement 47 and thecylinder core 13 to bias the blockingelement 47 into a direction of bias Y away from therespective toothed zone 35 of thedisk tumblers 21, as will be explained in the following (FIGS. 2 a and 3 a). This bias is also supported by acompression spring 55 which engages between asupport section 57 of the blockingelement 47 and aspring mount 59 of thecylinder core 13. The blockingelement 47 furthermore has aweb section 61 which extends parallel to the axis of rotation A of thecylinder core 13. Theweb section 61 has acounter-toothed zone 63 at the side facing thedisk tumblers 21. The blockingelement 47 furthermore has at its outer side remote from the disk tumblers 21 asupport section 65 which likewise extends parallel to the axis of rotation A. - The shown disk tumbler lock furthermore includes a
drill protection plate 67 and an associatedkey 69. - The general operation of the shown tumbler disk cylinder lock will be explained in the following mainly with reference to
FIGS. 2 a and 3 a.FIG. 2 a shows the lock before the complete introduction of the associatedkey 69. Due to the bias by means of therespective biasing spring 41, thedisk tumblers 21 are in a latched position in which therespective engagement section 25 engages into the associated cut-out 15 of thecylinder housing 11. Thecylinder core 13 is hereby blocked against a rotary movement relative to thecylinder housing 11. If, in contrast, the associated key 69 is introduced completely into thekeyway 33, thedisk tumblers 21 are brought opposite to the direction of bias X into a respective unlatched position in which theengagement sections 25 are withdrawn from the cut-out 15 of thecylinder housing 11 at the level of the ring gap which is formed between thecylinder housing 11 and thecylinder core 13. Thecylinder core 13 can now be rotated in the direction of opening O by means of the key 69.FIG. 3 a shows the result of such a rotation through 90°. The rotational security tumbler 43 (FIG. 1 ) prevents a rotary actuation of thecylinder core 13 as long as the associated key 69 is not completely introduced into thekeyway 33. - It must be noted that, for the
different disk tumblers 21, the directions of bias X can also be directed opposite to one another, in particular on the use of areversible key 69. In this case, the latched position of one of thedisk tumblers 21 is therefore disposed diametrically opposite the latched position of another of thedisk tumblers 21. - A special feature of the shown disk tumbler cylinder lock is the
respective toothed zone 35 of thedisk tumblers 21 which cooperates with thecounter-toothed zone 63 at theweb section 61 of thepivotable blocking element 47. Provided that a torque is exerted onto thecylinder core 13 in the direction of opening O, as long as therespective disk tumbler 21 is still in the latched position in accordance withFIG. 2 a, therespective toothed zone 35 of thedisk tumblers 21 enters into shape matched engagement with the namedcounter-toothed zone 63. The blockingelement 47 biased in the direction of bias Y is namely supported at the inner jacket surface of thecylinder housing 11, with thesupport section 65 of the blockingelement 47 engaging into the blocking cut-out 19 of thecylinder housing 11 so that the blockingelement 47 cannot escape backward despite the named torque loading onto thecylinder core 13. Due to the shape matched engagement thus brought about between thetoothed zone 35 and thecounter-toothed zone 63, therespective disk tumbler 21 is blocked against a movement opposite to the direction of bias X, that is from the latched position shown inFIG. 2 a in the direction of the unlatched position. The lock is hereby effectively protected against unauthorized opening by successive “setting” of thedisk tumblers 21 while applying a torque, with a displacement of therespective disk tumblers 21 from the latched position into the unlatched position not being permitted at all. - The active direction of the named shape matched engagement between the
respective toothed zone 35 and thecounter-toothed zone 63 in this respect extends substantially perpendicular to the direction of bias X of thedisk tumblers 21, i.e. substantially parallel to the direction of bias Y of the blockingelement 47. Due to the bias of the blockingelement 47 in the direction Y, an unintentional mutual engagement of thetoothed zone 35 of thedisk tumbler 21 and of thecounter-toothed zone 63 of the blockingelement 47 is prevented. - It is achieved by the engagement of the
support section 65 of the blockingelement 47 into the blocking cut-out 19 of thecylinder housing 11 that the blockingelement 47 blocks the cylinder core 13 (in addition to theengagement sections 25 of the disk tumblers 21) against a rotary movement relative to thecylinder housing 11 as long as thedisk tumblers 21 are in the latched position in accordance withFIG. 2 a. However, as soon as alldisk tumblers 21 have been brought into the respective unlatched position by introduction of the associated key 69 into thekeyway 33, theweb section 61 of the blockingelement 47 can pivot into the respective release cut-out 39 of thedisk tumblers 21 by rotating thecylinder core 13 in the rotary opening direction O so that the explained additional blocking effect of the blockingelement 47 is cancelled. The inner jacket surface of thecylinder housing 11 in this respect acts as a slotted link guide for the pivot movement of the blockingelement 47.FIG. 3 b shows that the release cut-outs 39 of thedisk tumblers 21 in this state form a throughgoing groove for the reception of theweb section 61 of the blockingelement 47. - It can also still be seen from
FIG. 2 a that the further cut-out 17 of thecylinder housing 11 enables a cooperation with the respectivefurther engagement section 27 of thedisk tumblers 21 to block thecylinder core 13 against a rotary movement relative to thecylinder housing 11 if therespective disk tumbler 21 is moved out of the latched position in accordance withFIG. 2 a beyond the explained latched position into a further latched position. In this case, a shape matched engagement is effected between thefurther toothed zone 37 of therespective disk tumbler 21 and thecounter-toothed zone 63 of the blockingelement 47 to prevent a movement back of thedisk tumbler 21 as long as a torque is exerted onto thecylinder core 13 in the rotary opening direction O.
Claims (19)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009030032 | 2009-06-23 | ||
DE200910030032 DE102009030032A1 (en) | 2009-06-23 | 2009-06-23 | Platelet cylinder with lockable platelet tumblers |
DEDE102009030032.5 | 2009-06-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20100319420A1 true US20100319420A1 (en) | 2010-12-23 |
US8695390B2 US8695390B2 (en) | 2014-04-15 |
Family
ID=42985410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/817,667 Expired - Fee Related US8695390B2 (en) | 2009-06-23 | 2010-06-17 | Wafer cylinder having blockable wafer tumblers |
Country Status (5)
Country | Link |
---|---|
US (1) | US8695390B2 (en) |
EP (1) | EP2267251A3 (en) |
JP (1) | JP5623152B2 (en) |
CN (1) | CN101929275B (en) |
DE (1) | DE102009030032A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120079861A1 (en) * | 2009-04-24 | 2012-04-05 | TNBT Holdings Pty Limited Unit 1B | Lock Assembly |
US9394723B1 (en) * | 2013-01-22 | 2016-07-19 | Amazon Technologies, Inc. | Lock that mechanically detects tampering |
US9567770B1 (en) | 2013-01-22 | 2017-02-14 | Amazon Technologies, Inc. | Lock that electronically detects tampering |
US10801233B2 (en) | 2018-04-03 | 2020-10-13 | Knox Associates, Inc. | Fluid guard and absorber for locking devices |
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JP6361253B2 (en) * | 2014-04-15 | 2018-07-25 | オムロン株式会社 | Variable lock for gaming machine |
DE102014108355A1 (en) | 2014-06-13 | 2015-12-17 | ABUS August Bremicker Söhne KG | cylinder lock |
DE102015000213B4 (en) * | 2015-01-07 | 2021-07-29 | D. la Porte Söhne GmbH | Lock cylinder with plate tumblers for a cylinder lock and cylinder lock with such a lock cylinder |
AU2017203748B1 (en) * | 2017-06-02 | 2018-02-08 | Integrated Lock Systems Australia Pty Ltd | Lock and key therefor |
JP7048070B2 (en) * | 2017-10-13 | 2022-04-05 | 株式会社オプナス | Cylinder lock and its inner cylinder |
EP3578742B1 (en) * | 2018-06-04 | 2021-03-03 | U-Shin France | Cylinder lock |
Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1600661A (en) * | 1924-09-01 | 1926-09-21 | Clum Mfg Company | Lock |
US1965889A (en) * | 1933-11-03 | 1934-07-10 | Briggs & Stratton Corp | Lock |
US2139842A (en) * | 1937-02-13 | 1938-12-13 | Arthur W Miller | Lock |
US2729092A (en) * | 1951-02-19 | 1956-01-03 | Ingersoll Ltd | Plug and cylinder type lock mechanism |
US3722241A (en) * | 1971-03-03 | 1973-03-27 | Liquidonics Inc | Security cylinder lock |
US3854311A (en) * | 1973-10-29 | 1974-12-17 | L Mercurio | Pick resistant lock having laterally movable wafers |
US3990282A (en) * | 1975-06-24 | 1976-11-09 | Sorum Lorang N | Tumbler type lock |
US3999413A (en) * | 1975-01-31 | 1976-12-28 | Raymond James W | Lock assembly |
US4015458A (en) * | 1975-11-21 | 1977-04-05 | Leonard Mercurio | Wafer type tumbler lock construction having individual side bar tumbler inhibiting means |
US4376382A (en) * | 1980-12-01 | 1983-03-15 | James W. Raymond | Resettable lock assembly |
US4712399A (en) * | 1985-12-19 | 1987-12-15 | Rielda Serrature S.R.L. | Cylinder lock with interchangeable key |
US4750342A (en) * | 1986-02-19 | 1988-06-14 | Clover Co., Ltd. | Locking device resistant to forcible opening |
US4753091A (en) * | 1987-05-11 | 1988-06-28 | Timothy Sheets | Pivoting tumbler system |
US4966021A (en) * | 1988-11-04 | 1990-10-30 | Masco Building Products Corp. | Reprogrammable lock and keys therefor |
US5134871A (en) * | 1989-10-20 | 1992-08-04 | U-Shin Ltd. | Cylinder lock |
US5765417A (en) * | 1996-04-03 | 1998-06-16 | U-Shin Ltd. | Free wheel lock cylinder |
US6119495A (en) * | 1997-03-10 | 2000-09-19 | Loreti; Alberto | Programmable cylinder lock, provided with master keys |
US20040069030A1 (en) * | 2002-10-15 | 2004-04-15 | Takigen Manufacturing Co., Ltd. | Side bar type cylinder lock with variable key code |
US20070006623A1 (en) * | 2003-03-24 | 2007-01-11 | Gunter Barrenberg | Cylinder lock |
US7424815B1 (en) * | 2007-06-12 | 2008-09-16 | Giussani Techniques S.P.A. | Reprogrammable lock |
US7634930B2 (en) * | 2002-01-03 | 2009-12-22 | Strattec Security Corporation | Lock apparatus and method |
US7975518B2 (en) * | 2007-07-02 | 2011-07-12 | Tong Lung Metal Industry Co., Ltd. | Re-keyable lock with improvements for preventing incomplete re-keying |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1889319U (en) * | 1963-03-20 | 1964-03-12 | Ymos Metallwerke Wolf & Becker | LOCKING CYLINDERS FOR SECURITY LOCKS WITH PLATE LOCKERS. |
CH401732A (en) * | 1963-06-25 | 1965-10-31 | Keso Ag | Security device on cylinder locks |
AT240724B (en) * | 1963-07-10 | 1965-06-10 | Keso Ag Praez Sschlossfabrik | Security device on cylinder locks |
FR2079573A5 (en) * | 1970-02-05 | 1971-11-12 | Vachette Sa | |
FR2410718A1 (en) * | 1977-12-05 | 1979-06-29 | Initial | Anti-picking mechanism for cylinder lock - uses nominal rotor rotation to move sliding pin and jam locking bit |
AU727454B2 (en) | 1996-02-07 | 2000-12-14 | Assa Abloy Ip Ab | A lock cylinder with plate or wafer tumblers |
US6978647B2 (en) * | 2001-07-02 | 2005-12-27 | Master Lock Company | Pick-resistant wafer tumbler lock with sidebars |
ITMI20051507A1 (en) | 2005-08-01 | 2007-02-02 | Giussani Tech S P A | REPROGRAMMABLE LOCK |
JP4945720B2 (en) * | 2007-03-26 | 2012-06-06 | 株式会社ユーシン | Cylinder lock |
DE102007056739A1 (en) | 2007-11-26 | 2009-05-28 | ABUS August Bremicker Söhne KG | Cylinder lock, particularly for panel cylinder, has cylindrical housing and cylinder core that swivels in cylindrical housing and possesses key channel and multiple locking plates are arranged in cylinder core in adjustable manner |
DE202008001880U1 (en) | 2008-02-07 | 2008-04-10 | Hu, Ching Huang, His-Hu | Disk detent cylinder lock |
-
2009
- 2009-06-23 DE DE200910030032 patent/DE102009030032A1/en not_active Withdrawn
-
2010
- 2010-01-21 CN CN201010001067.9A patent/CN101929275B/en not_active Expired - Fee Related
- 2010-06-16 EP EP10006240.5A patent/EP2267251A3/en not_active Withdrawn
- 2010-06-17 US US12/817,667 patent/US8695390B2/en not_active Expired - Fee Related
- 2010-06-22 JP JP2010141142A patent/JP5623152B2/en not_active Expired - Fee Related
Patent Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1600661A (en) * | 1924-09-01 | 1926-09-21 | Clum Mfg Company | Lock |
US1965889A (en) * | 1933-11-03 | 1934-07-10 | Briggs & Stratton Corp | Lock |
US2139842A (en) * | 1937-02-13 | 1938-12-13 | Arthur W Miller | Lock |
US2729092A (en) * | 1951-02-19 | 1956-01-03 | Ingersoll Ltd | Plug and cylinder type lock mechanism |
US3722241A (en) * | 1971-03-03 | 1973-03-27 | Liquidonics Inc | Security cylinder lock |
US3854311A (en) * | 1973-10-29 | 1974-12-17 | L Mercurio | Pick resistant lock having laterally movable wafers |
US3999413A (en) * | 1975-01-31 | 1976-12-28 | Raymond James W | Lock assembly |
US3990282A (en) * | 1975-06-24 | 1976-11-09 | Sorum Lorang N | Tumbler type lock |
US4015458A (en) * | 1975-11-21 | 1977-04-05 | Leonard Mercurio | Wafer type tumbler lock construction having individual side bar tumbler inhibiting means |
US4376382A (en) * | 1980-12-01 | 1983-03-15 | James W. Raymond | Resettable lock assembly |
US4712399A (en) * | 1985-12-19 | 1987-12-15 | Rielda Serrature S.R.L. | Cylinder lock with interchangeable key |
US4750342A (en) * | 1986-02-19 | 1988-06-14 | Clover Co., Ltd. | Locking device resistant to forcible opening |
US4753091A (en) * | 1987-05-11 | 1988-06-28 | Timothy Sheets | Pivoting tumbler system |
US4966021A (en) * | 1988-11-04 | 1990-10-30 | Masco Building Products Corp. | Reprogrammable lock and keys therefor |
US5134871A (en) * | 1989-10-20 | 1992-08-04 | U-Shin Ltd. | Cylinder lock |
US5765417A (en) * | 1996-04-03 | 1998-06-16 | U-Shin Ltd. | Free wheel lock cylinder |
US6119495A (en) * | 1997-03-10 | 2000-09-19 | Loreti; Alberto | Programmable cylinder lock, provided with master keys |
US7634930B2 (en) * | 2002-01-03 | 2009-12-22 | Strattec Security Corporation | Lock apparatus and method |
US20040069030A1 (en) * | 2002-10-15 | 2004-04-15 | Takigen Manufacturing Co., Ltd. | Side bar type cylinder lock with variable key code |
US20070006623A1 (en) * | 2003-03-24 | 2007-01-11 | Gunter Barrenberg | Cylinder lock |
US7424815B1 (en) * | 2007-06-12 | 2008-09-16 | Giussani Techniques S.P.A. | Reprogrammable lock |
US7975518B2 (en) * | 2007-07-02 | 2011-07-12 | Tong Lung Metal Industry Co., Ltd. | Re-keyable lock with improvements for preventing incomplete re-keying |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120079861A1 (en) * | 2009-04-24 | 2012-04-05 | TNBT Holdings Pty Limited Unit 1B | Lock Assembly |
US9074390B2 (en) * | 2009-04-24 | 2015-07-07 | Tnbt Holdings Pty Limited | Lock assembly |
US9394723B1 (en) * | 2013-01-22 | 2016-07-19 | Amazon Technologies, Inc. | Lock that mechanically detects tampering |
US9567770B1 (en) | 2013-01-22 | 2017-02-14 | Amazon Technologies, Inc. | Lock that electronically detects tampering |
US10100553B1 (en) | 2013-01-22 | 2018-10-16 | Amazon Technologies, Inc. | Lock that mechanically detects tampering |
US10801233B2 (en) | 2018-04-03 | 2020-10-13 | Knox Associates, Inc. | Fluid guard and absorber for locking devices |
US11808066B2 (en) | 2018-04-03 | 2023-11-07 | Knox Associates, Inc. | Fluid guard and absorber for locking devices |
Also Published As
Publication number | Publication date |
---|---|
CN101929275B (en) | 2014-08-20 |
US8695390B2 (en) | 2014-04-15 |
CN101929275A (en) | 2010-12-29 |
JP5623152B2 (en) | 2014-11-12 |
EP2267251A2 (en) | 2010-12-29 |
EP2267251A3 (en) | 2015-06-17 |
JP2011007035A (en) | 2011-01-13 |
DE102009030032A1 (en) | 2010-12-30 |
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